<!DOCTYPE html>
<html>
<head>
<script>
function addFrame(contents)
{
  var frame = document.createElement("iframe");
  frame.src = "data:text/html," + contents;
  document.body.appendChild(frame);
}
function boom()
{
  addFrame("1");
  document.documentElement.offsetHeight;
  addFrame("2");
  document.body.style.display = "table-caption";
}
</script>
</head>
<body onload="boom();"></body>
</html>
